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3201 Sijthoff (6560 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2003201
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08720000591802712 5.5225e-08  
a 2.258176563277977 1.1177e-08 AU
q 2.061263553596187 1.2253e-07 AU
i 2.990518152639793 4.7815e-06 deg
node 109.4929486976363 0.00010234 deg
peri 53.54769739380907 0.00010555 deg
M 190.4962405543374 2.682e-05 deg
tp 2457584.095728622070
(2016-Jul-14.59572862)
9.3129e-05 JED
period 1239.467861898926
3.39
9.202e-06
2.519e-08
d
yr
n .2904472242212575 2.1563e-09 deg/d
Q 2.455089572959767 1.2151e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1367  
   data-arc span      21804 days (59.70 yr)  
   first obs. used      1954-12-22  
   last obs. used      2014-09-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47587  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:43:08  

Additional Information
 Earth MOID = 1.07164 AU 
 T_jup = 3.615 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5 mag n/a MPO265974  

3201 Sijthoff (6560 P-L)          Discovered 1960-Sep-24 by PLS at Palomar (675)
These planets have all been discovered as a result of the Palomar survey of faint minor planets and subsequently identified with planets observed at other oppositions. In Sept. and Oct. 1960, T. Gehrels exposed 130 plates with the 122 cm Schmidt camera at Palomar. In the following years C. J. van Houten and I. van Houten-Groeneveld measured these plates astrometrically and photometrically at Leiden. P. Herget, Cincinnati, computed the orbits of the planets found on the NORC computer, Dahlgren, Virginia, USA.
Note: "planet" implies "minor planet"
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 6560 P-L = 1969 FE = 1979 DP 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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